returns a passed/failed value.The components that are essential for The first step to fix replication properly is to first identify what the current state of replication is in the cluster. Once you've done this you will need to run the utils dbreplication runtimestate command to monitor the progress. After the Cluster reboot, i tried to execute the command "utils dbreplication runtimestate" and this time disappeared. 3. Refer to Step This cdr list serv is the command that would be used under root access by Cisco TAC to check the current list of replication connections. Changes in architecture are implemented in later versions to address this limitation. Set up is still in progress. In order to determine whether your database replication is This document will explain a little about the output to assist people in their learning and in their troubleshooting efforts. option from the Navigationdrop-down list in the Cisco Unified If no, contact Cisco TAC. After you complete Step4, if there are no issues reported, run the. Recommended to set to 40 for large clusters (10+ nodes). Network Time Protocol (NTP) Reachability: The NTP is responsible for keeping the server's time in sync 1: This lets you know the last action performed and the time of the action. Understanding the output of utils dbreplication runtimestate for CUCM. This information is also available on the CLI using 'show tech network hosts'. 03-19-2019 You could probably pull the following and see if you find anything. For database replication, connectivity between servers must be established properly in each of the nodes involved in the cluster. "REPLICATION STATUS": This lets you know if the node is connected or offlineiii. Ensure that the Database Layer Remote Procedural Call (DBL RPC) that the following outputs and thereports are provided: The Cisco Unified Reporting CM Database Report (Refer to Step Cisco Unified Reporting on Cisco Unified Communication Manager (CUCM). Verify database replication is broken. The publisher always syncs the time with the device whose IP is listed as NTP servers; whereas, the subscribers syncs the time with the publisher. The 'utils dbreplication runtimestate' command provides a summary of the validation process. If the Cisco Database Replicator (CDR) list is empty for some parent reference clock) must be less. the steps mentioned under TheHosts files are mismatched. If yes, go to Step 8. network intensive task as it pushesthe actual tables to all the replication. equivalent on all the servers. utils dbreplication runtimestate Runtimestate command shows the progress of the database status so it can display different Replication Setup for the nodes while it is in progress. The actual optimal repltimeout can vary per cluster depending on WAN Latency, cluster density, and other factors, so this is just a guideline. We also have already verified in the link (LINKHERE) that all connectivity is good and DNS is not configured or working correctly. high, check network performance. 05:50 AM If yes, go toStep 8. 2. Unified Communications Manager, check utils dbreplication status on the subscriber (s) or if you have CUCM 7.1.5 check utils dbreplication runtimestate. !" if errors or mismatches are detected on the UCCX platform database replicates. I realize this is old, but does the command need to be run after hours or can this be done during production? 2023 Cisco and/or its affiliates. 0.474 Yes (5) Connected 0 match Yes (2) Setup Completedsub03dc 10.x.x.x. After verifying that we have good connectivity and all the underlying hosts files are correct and matching across the cluster it might be necessary to use CLI replication commands to fix the replication problem. This is an outdated state and is no longer around. The components that are essential for the proper functioning of the database replication are: The validate_network command checks all aspects of the network connectivity with all the nodes in the cluster. Collect the CM database status from the Cisco Unified Step 2. The nodes are scattered over the Wide Area Network (WAN): Ensure that the nodes have network connectivity well under 80 ms. We now do some other checks to prepare to fix replication. The utils dbreplication runtimestate command shows out We also have already verified in the link (LINKHERE) that all connectivity is good and DNS is not configured or working correctly. This command forces a subscriber to have its data restored from data on the publisher. This is used to determine to which servers replicates are pushed. Informix uses DNS very frequently and any failure/improper config in DNS can cause issues for replication. The following table lists each command and it's function. Such as Subscriber not working as expected, subscriber not taking configuration, which is done on Publisher, etc. Database in CUCM is a fully meshed topology which means that publisher and each subscriber connect logically to every server in the cluster; and all of them have the ability to update the data between them. No replication occurs in this state. Available in 7.X and later this command shows the state of replication as well as the state of replication repairs and resets. Ensure Replication Server List (cdr list serv) is populated for The report will display 'replication server list' and will show 'cdr list serv'. Finally after that has returned to state 2 all subs in the cluster must be rebooted. There are several commands which can be used so it is important to use the correct command under the correct circumstance. Refer to Step 5. This issue can occur because the other servers are unsure Definition: The server is up and the publisher is connected to the server b. If Graphic User Interface (GUI) is available, a Database Status Report must be generated. only the Rhosts files are mismatched, run the commands from the utils networkconnectivity command on all the nodes to check the NOTE: If the date and time is old, execute a utils dbreplication status to get updated data. I have Question, If the .rhost file is deleted/corrputed, is there a way to recreate it? In 7.1.2 and later utils dbreplication stop all can be run on the Publisher node to stop replication on all nodes, Always run from the publisher node, used to reset replication connections and do a broadcast of all tables. Replication timeout is the time that CUCM publisher waits for the subscriber server defines to complete before it will start a define. The amount of time this command takes to return is based on your cluster's repltimeout. After few minutes, use the command "utils dbreplication runtimestate" to check the replication status. Generate a new report and check if the Rhost files are In the output, ensure that the Cluster Replication State does not contain the old sync information.Check the same using the Timestamp. nodes. Verify if the A CiscoDB service is running from the CLI Can some one explain the difference between below commandUtils dbreplication status & Utils dbreplication runtime state. That has slowed me down fixing some DB replication issues. Server 1-5 = 1 Minute Per ServerServers 6-10 = 2 Minutes Per 10-25-2010 Check Database Replication using Cisco Unified Reporting on Cisco Unified Communication Manager (CUCM) Login to Cisco Unified Communication Manager Verify that " RPC? On the Publisher, enter the utils dbreplication dropadmindb command. Error, Intra-cluster communication is broken, as shown in this image. Thus the recommendation to the customer would be to follow the most basic process that fixes about 50 percent of replication cases. If you receive Cannot send TCP/UDP packets as an error message, check your network for any retransmissions or block the TCP/UDP ports. The nodes are scattered over the Wide Area Network (WAN): Ensure To check all tables run. We verify in the report that all of the hosts files look correct. If - Ensure that the port number 1515 is allowed on the Connecting i. Queue: Blank ii. shown in this image.1. In case errors are visible when these parameters are validated, it is suggested to contact Cisco Technical Assistance Center (TAC) and provide the collected information from each node in the cluster for further assistance. Use these resources to familiarize yourself with the community: The display of Helpful votes has changed click to read more! Symptom: admin:utils dbreplication runtimestate Last Sync Result: SYNC COMPLETED 656 tables sync'ed out of 701 Conditions: on version 9.0.1 Related Community . Once the above step is completed, execute the utils dbreplication stop command on the publisher. It is more like a push model than a pull model. In versions that do not yet have this command to see the failure use the command utils network [host ip/hostname] to check forward and reverse name resolution. Command utils service list displays the services and its status in CUCM node. Bullet point number 2 references what to look at for checking the progress with utils dbreplication runtimestate.2: This tells you if any tables were repaired, and how many tables have been checked after you executed the utils dbreplication status command3: If there are tables out of sync you will see something similar to "errors or mismatches found"4: Using this file view command allows you to look at the file in the activelog. Please run the command 'utils dbreplication runtimestate' and make sure all nodes are RPC reachable before a replication reset is executed Install the CUCM Publisher Gather a bootable image of the appropriate version, and perform an install with an upgrade to the appropriate version. Thank you to each and everyone for the nominations and your support. g_# with the number being the node id. theCLI: A Cisco DB ( utils service restart A Cisco DB ). There is a possibility of an incorrect activity when an IP 03-12-2019 For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Check the individual components using the utils diagnose test command, Step 5. It should not be service impacting unless you have a very active cluster that can't handle any additional load from checking all the DB tables. show tech network routes. Enter " utils dbreplication dropadmindb " and wait for the process to be completed. Database Status is visible from Unified CM Database Status Report as shown in the image. Perform the procedure in the off business hours. I choose to ask for the Database Status report as the customer is in a version that has this available. These steps are done automatically (by replication scripts) when the system is installed. This is not an exhaustive list. The cdr_broadcast actually contains which tables are being replicated and the result. As shown in this image, the Unified Cisco highly recommends to configure a Network Time Protocol (NTP) server with Stratum-1, Stratum-2, or Stratum-3 in CUCM publisher, in order to ensure that the cluster time is synchronized with an external time source. Complete these steps in order to check NTP status: 2. nodes, as shown in this image: If the network connectivty fails for the nodes: - Ensure that the network reachability is present between the runtimestate command. Reset the database replication from the scratch. They both follow a hub and spoke topology. Steps to Diagnose the Database Replication. scratch. For clusters with 5 nodes or less, the default repltimeout configuration of 300s is optimal. There are 5 states. status again. It should include the hostname and IP address of all nodes in the cluster including CUPS nodes. engineer follows in order to diagnose and isolate theproblem. This website uses cookies to improve your experience while you navigate through the website. up. Logical connections are established and the tables are matched with the other servers on the cluster. Ensure that the appropriate TCP/UDP port numbers are allowed on the network. Note: It is always better to raise a TAC case instead of issuing the command directly without understanding the risk involved. In case of an error, check for the network connectivity between Generate a new report every time you make a change on the GUI/CLI to check if the changes are included. how can customer recreate it? Remove database replication (utils uccx dbreplication teardown) Setup database replication (utils uccx dbreplication setup) Initiate a data repair process for all the databases (utils uccx dbreplication repair all). flagged as anerror. Thepublisher always syncs the time with Repair all/selective the tables for database You can also look in the informix log on that box to confirm this. The server no longer has an active logical connection to receive database table across. Click on System Reports > Click on Unified CM Database Status > Click on Generate a new report, Once the report is generated > You will be able to see the Replication Status > Please refer to below screenshot. You must check the status for every node. nodes in the cluster. image. Symptom: utils dbreplication runtimestate shows the replication is setup completed but with RTMT counter value as zero. of the node using the utils service list command. Comment * document.getElementById("comment").setAttribute( "id", "a7d46679e98bd69cf46178eb06c88234" );document.getElementById("e924e095bc").setAttribute( "id", "comment" ); We are happy to announce that our blog UC Collabing has been ranked among top 25 blogs by #Cisco. Its does a great job of explaining how to troubleshoot issues with DB rep beyond "just restart the servers and hope for 2's". In other words, a change made on "A" will be sent to "B" by "A". that the publisher waits for all the subscribers in order tosend 1- Share the output of "utils dbreplication runtimestate" command from the CLI of the publisher node. Thus, the only way for a change made on a particular server to get to other servers is for that server to replicate it personally. The common error Ensure Local and Publisher databases are accessible. If any errors/mismatches are discovered, theyare shown To confirm that replication is setting up in a single batch, run utils dbreplication stop all followed by utils dbreplication reset all from the CUCM publisher, and then verify the sequence of logs using file list activelog cm/trace/dbl/* date detailed from the publisher CLI. nodes, refer to Step 8. commandcompletes the operation in 300 seconds. the nodes. However, you can verifywhether the DNS is configured and Server "A" must send it to "C" and all other nodes. Execute the utils dbreplication stop command on all subscribers. How to check if an Analog Phone is connected to a VG224 Port? 3.863 Yes (8) Connected 0 match Yes (2) Setup Completed. We now do some other checks to prepare to fix replication. If the Sqlhosts are mismatched along with the host files, follow utils dbreplication runtimestate. Choose "Cisco Unified Reporting" from the Navigation dropdown in the upper right corner of the CCMAdministration page. Reset the database replication from the scratch Refer to the sequence to reset the database replication and start the process from the scratch. Below are these steps. The show network cluster command checksfor If yes, go to Step 8. We'll assume you're ok with this, but you can opt-out if you wish. Great document, One thing i would add to the document, is to check the server times are correct and synced (NTP working fine). Make sure the IP, OU and DC are correct and that no firewall is blocking the connection. message, check your network forany retransmissions or block the Note: In some case, restarting the service may work, cluster reboot may not be required. In the output, ensure that the Cluster Replication State does not contain the old sync information. 10:20 AM. utils dbreplication stop all (Only on the publisher), utils dbreplication dropadmindb (First on all the subscribers Now that the state of replication has been identified, if the servers are in a state other than 2 it is necessary to identify what other information is needed in order to proceed in taking further acction. This is an important step. "REPL. Collect the CM database status from the Cisco Unified Reporting page on the CUCM, Step 3. Review the Unified CM Database Report any component flagged as an error, Step 4. according the command " file view activelog cm/log/informix/ccm.log . This file is generated each time you execute utils dbreplication status. For IM and Presence Service , enter the command on the database publisher node if you have more than one node in your deployment. nodes are not able to join the replicationprocess, increase the No replication is occurring in this state. In order to generate an Unified CM Database Status report, navigate to Cisco Unified Reporting > System Reports > Unified CM Database Status. If only Runtimestate command shows the progress of the database status so it can display different Replication Setup for the nodes while it is in progress. Network Time Protocol (NTP) Reachability: The NTP is responsible to keep the server's time in sync with the reference clock. This is likely the best summary of dbreplication I've found yet. In case you reach the Cisco TAC for further assistance, ensure This file is used to locally resolve hostnames to IP addresses. This state is rarely seen in versions 6.x and 7.x; in versi. Run the utils dbreplication runtimestate command to check the status again. Cisco Bug: CSCue41922 - UCCX runtimestat SYNC COMPLETED 656 tables sync'ed out of 701. LOOP?" database replication issues when theservers are defined using the The documentation set for this product strives to use bias-free language. Learn more about how Cisco is using Inclusive Language. If theCisco Database Replicator (CDR) list is empty for some nodes, refer to Step 8. Generate a new report that uses the Generate New Report option or click the Generate New Report icon as shown in this image. With this information in hand we have identified that the cluster does not have any logical connections to replicate across. click the Generate New Reporticon as shown in this image. The publisher is in Replication State = 3, SubscriberA is in Replication State =3 and SubscriberB is in Replication State = 4. The utils diagnose test command checks all the components and 1: This lets you know the last action performed and the time of the action. Ensure the network connectivity between the particular node and the publisher. All rights reserved. . Once the above step is completed, execute the utils dbreplication stop command on the publisher. To verify the database replication, run the utils dbreplication runtimestate command fromtheCLI of the publisher node, as shown in this image. Lets begin by documenting the places that you could check to see the replication state. necessary to troubleshoot and resolve those issues. The Steps 7 and 8 must be performed after the checklist is this image. Publisher must be able to reach all subscribers and network connectivity result must be completed successfully. You don't need to do a full stop/reset unless the nodes aren't setting up at all. Calculate the replication timeout based on the number of nodes in the cluster. In this case CUCM will broadcast the tables to the servers that defined in under 5 seconds, and will need to do a 2nd (or more) define and broadcast cycle to complete replication setup with all nodes. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. If this fails, contact the 5. network connectivity and the securitypassword is same on all the If the RPC hello does not work for a particular node: Refer to this link for details on TCP/UDP port usage: Cisco Unified Communications Manager TCP and UDP port usage. 03-16-2019 Replication REPLICATION SETUP SERVER-NAME IP ADDRESS (msec) DbMon? 12:47 PM. It runs a repair process on all tables in the . messages as seen in the networkconnectivity tests: 1. I wanted to ensure that we reset the replication connections and do a broadcast of all the tables. Thanks for creating this Patrick. The utils dbreplication runtimestate command shows out of sync or 1) Login to Primary Node and issue command: >> utils system restart 2) Wait for the server to come up, if you can open Web interface, service is fully functional. In the output, ensure that the Cluster Replication State does After all subscribers have been defined we then wait the repltimeout (Can check from show tech repltimeout) it will then do a broadcast file that actually pushes the replicates across. utils dbreplication repair -- in CUCM 5.x, this command meant a reset of the replication, whereas, in CUCM 6.10 and higher versions, this means a repair of the data. The output from CUCM version 10.5.2 NOTE: THESE COMMANDS SHOULD BE RUN FROM THE PUBLISHER The explanation All rights reserved. Cisco Unity Connection Replication not setup. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. The utils dbreplication runtimestate command shows out of sync or not requested statuses, Step 7. T. this image. Replication is in the process of setting up. If the utils dbreplication runtimestate command shows that there The publisher and each subscriber connect logically to every server in the cluster and each server can update all servers (including the publisher) on user facing features such as call forward all. Can you get the output of show network eth0 detail ? Servers here should have the correct hostname and node id (populated from the process node table). all the nodes. A list of hostnames which are trusted to make database connections. On the right hand side of the screen, the replication status will be shown. It is essential that the NTP stratum (Number of hops to the parent reference clock) must be less than 5 or else it is deemed unreliable. utils dbreplication stop on all subscribers. Refer to this link in order to change IP address to the Hostname Checkes critical dynamic tables for consistency. than 5 or else it will deem it unreliable. 0.036 Yes (2) Connected 0 match Yes (2) PUB Setup CompletedSUB01DC 10.x.x.x. Database replication commands must be run from the publisher. In 6.x and 7.x all servers could show state 3 if one server is down in the cluster. Find answers to your questions by entering keywords or phrases in the Search bar above. Below is the /etc/hosts as displayed Verified in Unified Reporting. of sync ornot requested statuses. But opting out of some of these cookies may have an effect on your browsing experience.

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